Audio Success Series: Leadership, Vol. 1Brian Tracy, Zig Ziglar, Chris Widener, Dr. Sheila Murray Bethel, Laura Stack, Ron White, Danny Cox, Connie Podesta, Brad Worthley, Mark Sanborn, Larry Wilson, Roxanne Emmerich & Jim Rohn
Audio Success Series: Leadership, Vol. 4Brian Tracy, Zig Ziglar, Chris Widener, Dr. Sheila Murray Bethel, Laura Stack, Ron White, Danny Cox, Connie Podesta, Brad Worthley, Mark Sanborn, Larry Wilson, Roxanne Emmerich & Jim Rohn
Audio Success Series: Leadership, Vol. 13Brian Tracy, Zig Ziglar, Chris Widener, Dr. Sheila Murray Bethel, Laura Stack, Ron White, Danny Cox, Connie Podesta, Brad Worthley, Mark Sanborn, Larry Wilson, Roxanne Emmerich & Jim Rohn
Audio Success Series: Leadership, Vol. 7Brian Tracy, Zig Ziglar, Chris Widener, Dr. Sheila Murray Bethel, Laura Stack, Ron White, Danny Cox, Connie Podesta, Brad Worthley, Mark Sanborn, Larry Wilson, Roxanne Emmerich & Jim Rohn
Audio Success Series: Leadership, Vol. 11Brian Tracy, Zig Ziglar, Chris Widener, Dr. Sheila Murray Bethel, Laura Stack, Ron White, Danny Cox, Connie Podesta, Brad Worthley, Mark Sanborn, Larry Wilson, Roxanne Emmerich & Jim Rohn